Calibration Cycles; Numeric Quantities; Point Sweeps - AEA VIA Bravo MRI Operating Manual

3.12.3

Calibration Cycles

The VIA Bravo MRI will periodically enter a calibration cycle. This ensures the best
accuracy over long periods of time. Changing certain sweep parameters can also induce a
calibration cycle. Sometimes you may want to enter something into the keypad while a
calibration cycle is in progress. This is allowed, so you may repeatedly bump the width or
alter the center frequency without waiting for the calibration cycles to finish. However after
you have completed your sweep alterations, the VIA Bravo MRI performs one last calibration
cycle before displaying the new data.
3.12.4

Numeric Quantities

The VIA Bravo compliments the plot displays with a number of numerical quantities.
These quantities depend on the sweep settings and the instrument mode.
3.12.5

80 Point Sweeps

The 80 point sweeps use large font numbers that can be read from about 10 feet away
with proper lighting/backlight conditions.
3.12.5.1 VIA Mode
There are three numbers displayed, all of these numbers are center frequency values.
The numbers are, in order from top to bottom:
Left plot value
Right plot value
The Q of the Z curve if Z is one of the 2 plots.
3.12.5.2 SWR Mode
There are three numbers displayed, all of these numbers are center frequency values.
The numbers are, in order from top to bottom:
Left plot value
Right plot value
The Q of the SWR curve if SWR is one of the 2 plots. The Q is the 2:1 bandwidth divided
by the center frequency.
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